| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard for an electronic keyboard instrument, which enables a player to easily perform weight reduction and touch adjustment of a keyboard in accordance with his or her technical level or preference. <P>SOLUTION: The keyboard device is provided with a keyboard 3 which is extended in the longitudinal direction and has a freely turnably supported solid keyboard main body 3c, and the keyboard main body 3c has holes 6a and 6b formed, which reduce the weight of the keyboard main body 3c. The center part of the keyboard main body 3c is freely turnably supported by a support point 5, and holes 6a and 6b are formed in a main body front part 3e on the front side and a main body rear part 3f on the rear side of the support point 5 of the keyboard main body 3c. <P>COPYRIGHT: (C)2004,JPO |
